Presentation on theme: "Using The Herbicide Classification Chart"— Presentation transcript
Slide1
Using The Herbicide Classification ChartTravis LegleiterWeed Science Program SpecialistPurdue University
Slide2
Classification Chart is a redesign of former Herbicide
MOA chart
Part of the “Take Action” effort
Access to chart and other resources:
http
://takeactiononweeds.com
/
Slide3
What Causes Herbicide Resistance?
Selection PressureThe repetitive use of a single mode of action
over time under non-ideal conditions.
Slide4
Mode of Action vs. Site of Action
Terms often interchanged or confusedMode of Action: The effect of the herbicide on plant growth and eventual death at effective doses.
Site of Action: The enzyme site or pathway that the herbicide binds or inhibits to create the plant growth effects.Sites of action are subsets of modes of action
Slide5
Some Modes of Action have one site of action
Other Modes of Action have multiple sites of action
Slide6
Site of Action Group #’s
Each unique site of action given a unique number
Group #’s are easier to use and recognize than scientific site of action namesThese group #’s are included on many herbicide labels as well.
Slide7
Publication is split down the middle into two Charts:
Chart Layout:
Slide8Slide9
By Mode of Action:
Trade name products and their respective active
ingredients
Slide10
By Mode of Action:
Trade name products and their respective active ingredients
Grouped By
Chemical Family
Slide11
By Mode of Action:
Trade name products and their respective active ingredients
Grouped By
Chemical Family
Grouped By
Site of Action
Slide12
By Mode of Action:
Trade name products and their respective active ingredients
Grouped By
Chemical Family
Grouped By
Site of Action
Grouped By
Mode of Action
Slide13
By Mode of Action:
Trade name products and their respective active ingredients
Grouped By
Chemical Family
Grouped By
Site of Action
Grouped By
Mode of ActionChart includes: Number of resistant weed species for each site of action
Slide14
By Mode of Action:
Trade name products and their respective active ingredients
Grouped By
Chemical Family
Grouped By
Site of Action
Grouped By
Mode of ActionChart includes: Number of resistant weed species for each site of actionAnd Most ImportantlyGroup Number and an associated color for each Site of Action
Slide15
Example: Callisto
Slide16
Example: Callisto
Active Ingredient:
mesotrione
Slide17
Example: Callisto
Active Ingredient:
mesotrione
Chemical Family:
Triketone
Slide18
Example: Callisto
Active Ingredient:
mesotrione
Chemical Family:
Triketone
Site of Action:
HPPD Inhibitor
Slide19
Example: Callisto
Active Ingredient:
mesotrione
Chemical Family:
Triketone
Site of Action:
HPPD Inhibitor
Mode of Action:
Pigment Inhibitor
Slide20
Example: Callisto
Active Ingredient:
mesotrione
Chemical Family:
Triketone
Site of Action:
HPPD Inhibitor
Mode of Action:
Pigment Inhibitor
Number of Resistant Weed Species:
2
Slide21
Example: Callisto
Active Ingredient:
mesotrione
Chemical Family:
Triketone
Site of Action:
HPPD Inhibitor
Mode of Action:
Pigment Inhibitor
Number of Resistant Weed Species:
2
& Finally
Herbicide Group #:
27
Slide22
By Premix:
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By Premix:
Premix names listed in alphabetical order
Slide24
By Premix:
Premixes listed in Alphabetical order
Includes:
-Active ingredients
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By Premix:
Premixes listed in Alphabetical order
Includes:
-Active ingredients
-Trade names of products w/ single active
Slide26
By Premix:
Premixes listed in Alphabetical order
Includes:
-Active ingredients
-Trade names of products w/ single active
-Site of Action Group Numbers and corresponding color coding.
Slide27
By Premix:
Premixes listed in Alphabetical order
Includes:
-Active ingredients
-Trade names of products w/ single active
-Site of Action Group Numbers and corresponding color coding.
Example:
Lexar EZ contains actives:-mesotione (Callisto), s-metolachlor(Dual II Magnum), & atrazine(Aatrex)
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By Premix:
Premixes listed in Alphabetical order
Includes:
-Active ingredients
-Trade names of products w/ single active
-Site of Action Group Numbers and corresponding color coding.
Example:
Lexar EZ contains actives:-mesotione (Callisto), s-metolachlor(Dual II Magnum), & atrazine(Aatrex)Those actives are in the site of action groups:-27, 15, & 5
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By Premix:
Premixes listed in Alphabetical order
Includes:
-Active ingredients
-Trade names of products w/ single active
-Site of Action Group Numbers and corresponding color coding.
Example:
Lexar EZ contains actives:-mesotione (Callisto), s-metolachlor(Dual II Magnum), & atrazine(Aatrex)Those actives are in the site of action Groups:-27, 15, & 5Remember Callisto from the “By Mode of Action” Chart. You can link to that chart using the color coding (Blue) and group number (27).
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Outline Herbicide Programs
Use chart to outline site of action rotation
Find products on chart and write down site of action group #
What to look for:
-# of site of action used
-# of effective sites of action used -Selection pressure placed on a site of action (used more than 2x)
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Herbicide Classification
Waterhemp (ALS
+ glyphosate resistant)
Timing
Herbicide
Active Ingredient(s)
SOA Group
Early PostExtreme
Late Post
Flexstar GT
Slide32
Herbicide Classification
Waterhemp (ALS
+ glyphosate resistant)
Timing
Herbicide
Active Ingredient(s)
SOA Group
Early PostExtremeimazethapyr2
glyphosate
9
Late Post
Flexstar GT
Slide33
Herbicide Classification
Waterhemp (ALS
+ glyphosate resistant)
Timing
Herbicide
Active Ingredient(s)
SOA Group
Early PostExtremeimazethapyr2
glyphosate
9
Late Post
Flexstar GT
fomesafen
14
glyphosate
9
Slide34
Herbicide Classification
Waterhemp (ALS
+ glyphosate resistant)
Timing
Herbicide
Active Ingredient(s)
SOA Group
Early PostExtremeimazethapyr2
glyphosate
9
Late Post
Flexstar GT
fomesafen
14
glyphosate
9
Effective Sites of Action!
Slide35
Herbicide Classification
Palmer Amaranth (ALS
+ glyphosate resistant)
Timing
Herbicide
Active Ingredient(s)
SOA Group
BurndownRoundup2,4-D
Envive
Early Post
Prefix
Late
Post
Cobra
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Herbicide Classification
Palmer Amaranth (ALS
+ glyphosate resistant)
Timing
Herbicide
Active Ingredient(s)
SOA Group
BurndownRoundupglyphosate
9
2,4-D
Envive
Early Post
Prefix
Late
Post
Cobra
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Herbicide Classification
Palmer Amaranth (ALS
+ glyphosate resistant)
Timing
Herbicide
Active Ingredient(s)
SOA Group
BurndownRoundupglyphosate92,4-D
2,4-D
4
Envive
Early Post
Prefix
Late
Post
Cobra
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Herbicide Classification
Palmer Amaranth (ALS
+ glyphosate resistant)
Timing
Herbicide
Active Ingredient(s)
SOA Group
BurndownRoundupglyphosate92,4-D
2,4-D
4
Envive
chlorimuron
2
thifensulfuron
2
flumioxazin
14
Early Post
Prefix
Late
Post
Cobra
Slide39
Herbicide Classification
Palmer Amaranth (ALS
+ glyphosate resistant)
Timing
Herbicide
Active Ingredient(s)
SOA Group
BurndownRoundupglyphosate92,4-D
2,4-D
4
Envive
chlorimuron
2
thifensulfuron
2
flumioxazin
14
Early Post
Prefix
s-metolachlor
15
fomesafen
14
Late
Post
Cobra
Slide40
Herbicide Classification
Palmer Amaranth (ALS
+ glyphosate resistant)
Timing
Herbicide
Active Ingredient(s)
SOA Group
BurndownRoundupglyphosate92,4-D2,4-D
4
Envive
chlorimuron
2
thifensulfuron
2
flumioxazin
14
Early Post
Prefix
s-metolachlor
15
fomesafen
14
Late
Post
Cobra
lactofen
14
Slide41
Herbicide Classification
Palmer Amaranth (ALS
+ glyphosate resistant)
Timing
Herbicide
Active Ingredient(s)
SOA Group
BurndownRoundupglyphosate92,4-D
2,4-D
4
Envive
chlorimuron
2
thifensulfuron
2
flumioxazin
14
Early Post
Prefix
s-metolachlor
15
fomesafen
14
Late
Post
Cobra
lactofen
14
Effective Sites of Action!
Slide42
Your Turn!-Write out your soybean program and site of action group numbers-How many Effective Sites of Action do you have?-Write out your programs for a 2 year corn and soybean rotation
Slide43
Tools For The Battle Against Weeds
https://ag.purdue.edu/btny/weedscience
http://www.facebook.com/purdue.weedscience
Purdue Weed Science Webpage:
Purdue Weed Science Facebook:
Travis Legleiter:
tlegleit@purdue.edu
(765) 496-2121Dr. Bill Johnson wgj@purdue.edu (765) 494-4656
